Danish photographer Nicolai Howalt has a really great photo series on his site called Boxer which he took in 2003. It features young boys before and after they’re boxing matches, and as you can see above, some of the afters are quite drastic. Altogether there are 44 photos, and the before and afters are pretty all over the place, some of the kids looking red and puffy, while others just look like they’re was ruffled a little.

It’s kind of like those games where you’re trying to spot the differences, except you’re looking for bruises and swollen eyes.